diff options
Diffstat (limited to 'gfx/layers/ipc/CompositorManagerChild.cpp')
| -rw-r--r-- | gfx/layers/ipc/CompositorManagerChild.cpp | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/gfx/layers/ipc/CompositorManagerChild.cpp b/gfx/layers/ipc/CompositorManagerChild.cpp new file mode 100644 index 0000000000..9692d6e442 --- /dev/null +++ b/gfx/layers/ipc/CompositorManagerChild.cpp @@ -0,0 +1,262 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#include "mozilla/layers/CompositorManagerChild.h" + +#include "mozilla/StaticPrefs_layers.h" +#include "mozilla/layers/CompositorBridgeChild.h" +#include "mozilla/layers/CompositorManagerParent.h" +#include "mozilla/layers/CompositorThread.h" +#include "mozilla/gfx/gfxVars.h" +#include "mozilla/gfx/GPUProcessManager.h" +#include "mozilla/dom/ContentChild.h" // for ContentChild +#include "mozilla/dom/BrowserChild.h" // for BrowserChild +#include "mozilla/ipc/Endpoint.h" +#include "VsyncSource.h" + +namespace mozilla { +namespace layers { + +using gfx::GPUProcessManager; + +StaticRefPtr<CompositorManagerChild> CompositorManagerChild::sInstance; +Atomic<base::ProcessId> CompositorManagerChild::sOtherPid(0); + +/* static */ +bool CompositorManagerChild::IsInitialized(uint64_t aProcessToken) { + MOZ_ASSERT(NS_IsMainThread()); + return sInstance && sInstance->CanSend() && + sInstance->mProcessToken == aProcessToken; +} + +/* static */ +void CompositorManagerChild::InitSameProcess(uint32_t aNamespace, + uint64_t aProcessToken) { + MOZ_ASSERT(NS_IsMainThread()); + if (NS_WARN_IF(IsInitialized(aProcessToken))) { + MOZ_ASSERT_UNREACHABLE("Already initialized same process"); + return; + } + + RefPtr<CompositorManagerParent> parent = + CompositorManagerParent::CreateSameProcess(); + RefPtr<CompositorManagerChild> child = + new CompositorManagerChild(parent, aProcessToken, aNamespace); + if (NS_WARN_IF(!child->CanSend())) { + MOZ_DIAGNOSTIC_ASSERT(false, "Failed to open same process protocol"); + return; + } + + parent->BindComplete(/* aIsRoot */ true); + sInstance = std::move(child); + sOtherPid = sInstance->OtherPid(); +} + +/* static */ +bool CompositorManagerChild::Init(Endpoint<PCompositorManagerChild>&& aEndpoint, + uint32_t aNamespace, + uint64_t aProcessToken /* = 0 */) { + MOZ_ASSERT(NS_IsMainThread()); + if (sInstance) { + MOZ_ASSERT(sInstance->mNamespace != aNamespace); + } + + sInstance = new CompositorManagerChild(std::move(aEndpoint), aProcessToken, + aNamespace); + sOtherPid = sInstance->OtherPid(); + return sInstance->CanSend(); +} + +/* static */ +void CompositorManagerChild::Shutdown() { + MOZ_ASSERT(NS_IsMainThread()); + CompositorBridgeChild::ShutDown(); + + if (!sInstance) { + return; + } + + sInstance->Close(); + sInstance = nullptr; + sOtherPid = 0; +} + +/* static */ +void CompositorManagerChild::OnGPUProcessLost(uint64_t aProcessToken) { + MOZ_ASSERT(NS_IsMainThread()); + + // Since GPUChild and CompositorManagerChild will race on ActorDestroy, we + // cannot know if the CompositorManagerChild is about to be released but has + // yet to be. As such, we want to pre-emptively set mCanSend to false. + if (sInstance && sInstance->mProcessToken == aProcessToken) { + sInstance->mCanSend = false; + sOtherPid = 0; + } +} + +/* static */ +bool CompositorManagerChild::CreateContentCompositorBridge( + uint32_t aNamespace) { + MOZ_ASSERT(NS_IsMainThread()); + if (NS_WARN_IF(!sInstance || !sInstance->CanSend())) { + return false; + } + + CompositorBridgeOptions options = ContentCompositorOptions(); + + RefPtr<CompositorBridgeChild> bridge = new CompositorBridgeChild(sInstance); + if (NS_WARN_IF( + !sInstance->SendPCompositorBridgeConstructor(bridge, options))) { + return false; + } + + bridge->InitForContent(aNamespace); + return true; +} + +/* static */ +already_AddRefed<CompositorBridgeChild> +CompositorManagerChild::CreateWidgetCompositorBridge( + uint64_t aProcessToken, WebRenderLayerManager* aLayerManager, + uint32_t aNamespace, CSSToLayoutDeviceScale aScale, + const CompositorOptions& aOptions, bool aUseExternalSurfaceSize, + const gfx::IntSize& aSurfaceSize, uint64_t aInnerWindowId) { + MOZ_ASSERT(XRE_IsParentProcess()); + MOZ_ASSERT(NS_IsMainThread()); + if (NS_WARN_IF(!sInstance || !sInstance->CanSend())) { + return nullptr; + } + + TimeDuration vsyncRate = + gfxPlatform::GetPlatform()->GetGlobalVsyncDispatcher()->GetVsyncRate(); + + CompositorBridgeOptions options = WidgetCompositorOptions( + aScale, vsyncRate, aOptions, aUseExternalSurfaceSize, aSurfaceSize, + aInnerWindowId); + + RefPtr<CompositorBridgeChild> bridge = new CompositorBridgeChild(sInstance); + if (NS_WARN_IF( + !sInstance->SendPCompositorBridgeConstructor(bridge, options))) { + return nullptr; + } + + bridge->InitForWidget(aProcessToken, aLayerManager, aNamespace); + return bridge.forget(); +} + +/* static */ +already_AddRefed<CompositorBridgeChild> +CompositorManagerChild::CreateSameProcessWidgetCompositorBridge( + WebRenderLayerManager* aLayerManager, uint32_t aNamespace) { + MOZ_ASSERT(XRE_IsParentProcess()); + MOZ_ASSERT(NS_IsMainThread()); + if (NS_WARN_IF(!sInstance || !sInstance->CanSend())) { + return nullptr; + } + + CompositorBridgeOptions options = SameProcessWidgetCompositorOptions(); + + RefPtr<CompositorBridgeChild> bridge = new CompositorBridgeChild(sInstance); + if (NS_WARN_IF( + !sInstance->SendPCompositorBridgeConstructor(bridge, options))) { + return nullptr; + } + + bridge->InitForWidget(1, aLayerManager, aNamespace); + return bridge.forget(); +} + +CompositorManagerChild::CompositorManagerChild(CompositorManagerParent* aParent, + uint64_t aProcessToken, + uint32_t aNamespace) + : mProcessToken(aProcessToken), + mNamespace(aNamespace), + mResourceId(0), + mCanSend(false), + mSameProcess(true) { + MOZ_ASSERT(aParent); + + SetOtherProcessId(base::GetCurrentProcId()); + if (NS_WARN_IF(!Open(aParent, CompositorThread(), ipc::ChildSide))) { + return; + } + + mCanSend = true; + AddRef(); + SetReplyTimeout(); +} + +CompositorManagerChild::CompositorManagerChild( + Endpoint<PCompositorManagerChild>&& aEndpoint, uint64_t aProcessToken, + uint32_t aNamespace) + : mProcessToken(aProcessToken), + mNamespace(aNamespace), + mResourceId(0), + mCanSend(false), + mSameProcess(false) { + if (NS_WARN_IF(!aEndpoint.Bind(this))) { + return; + } + + mCanSend = true; + AddRef(); + SetReplyTimeout(); +} + +void CompositorManagerChild::ActorDealloc() { + MOZ_ASSERT(!mCanSend); + Release(); +} + +void CompositorManagerChild::ActorDestroy(ActorDestroyReason aReason) { + mCanSend = false; + if (sInstance == this) { + sInstance = nullptr; + } +} + +void CompositorManagerChild::HandleFatalError(const char* aMsg) const { + dom::ContentChild::FatalErrorIfNotUsingGPUProcess(aMsg, OtherPid()); +} + +void CompositorManagerChild::ProcessingError(Result aCode, + const char* aReason) { + if (aCode != MsgDropped) { + gfxDevCrash(gfx::LogReason::ProcessingError) + << "Processing error in CompositorBridgeChild: " << int(aCode); + } +} + +void CompositorManagerChild::SetReplyTimeout() { +#ifndef DEBUG + // Add a timeout for release builds to kill GPU process when it hangs. + if (XRE_IsParentProcess() && GPUProcessManager::Get()->GetGPUChild()) { + int32_t timeout = + StaticPrefs::layers_gpu_process_ipc_reply_timeout_ms_AtStartup(); + SetReplyTimeoutMs(timeout); + } +#endif +} + +bool CompositorManagerChild::ShouldContinueFromReplyTimeout() { + if (XRE_IsParentProcess()) { + gfxCriticalNote << "Killing GPU process due to IPC reply timeout"; + MOZ_DIAGNOSTIC_ASSERT(GPUProcessManager::Get()->GetGPUChild()); + GPUProcessManager::Get()->KillProcess(); + } + return false; +} + +mozilla::ipc::IPCResult CompositorManagerChild::RecvNotifyWebRenderError( + const WebRenderError&& aError) { + MOZ_ASSERT(XRE_IsParentProcess()); + MOZ_ASSERT(NS_IsMainThread()); + GPUProcessManager::Get()->NotifyWebRenderError(aError); + return IPC_OK(); +} + +} // namespace layers +} // namespace mozilla |